<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	private $_id;
	public function authenticate()
	{
		$users=array(
			// username => password
			'admin'=>'abc123',
		);
		$record=Uzytkownik::model()->findByAttributes(array('login'=>$this->username));
		
		if(!isset($users[$this->username]) && $record===null)
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		else if((isset($users[$this->username]) && $users[$this->username]!==$this->password) || ($record!==null && $record->haslo!==md5($this->password)))
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		else {
			$this->errorCode=self::ERROR_NONE;
			if ($record!==null)
				$this->_id=$record->idUzytkownika;
			else
				$this->_id=0;
			if (isset($users[$this->username]) && $users[$this->username]===$this->password)
				$this->setState('adm', true);
			else
				$this->setState('adm', false);
		}
		return !$this->errorCode;
	}
	
	public function getId()
	{
		return $this->_id;
	}
}